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Posted to yarn-issues@hadoop.apache.org by "Eric Badger (Jira)" <ji...@apache.org> on 2019/09/26 16:18:00 UTC
[jira] [Updated] (YARN-9857) TestDelegationTokenRenewer throws NPE
but tests pass
[ https://issues.apache.org/jira/browse/YARN-9857?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Eric Badger updated YARN-9857:
------------------------------
Fix Version/s: 3.3.0
> TestDelegationTokenRenewer throws NPE but tests pass
> ----------------------------------------------------
>
> Key: YARN-9857
> URL: https://issues.apache.org/jira/browse/YARN-9857
> Project: Hadoop YARN
> Issue Type: Improvement
> Reporter: Ahmed Hussein
> Assignee: Ahmed Hussein
> Priority: Minor
> Fix For: 3.3.0
>
> Attachments: YARN-9857.001.patch
>
>
> {{TestDelegationTokenRenewer}} throws some NPEs:
> {code:bash}
> 2019-09-25 12:51:23,446 WARN [pool-19-thread-2] security.DelegationTokenRenewer (DelegationTokenRenewer.java:handleDTRenewerAppSubmitEvent(945)) - Unable to add the application to the delegation token renewer.
> java.lang.NullPointerException
> at org.apache.hadoop.yarn.server.resourcemanager.security.DelegationTokenRenewer$DelegationTokenRenewerRunnable.handleDTRenewerAppSubmitEvent(DelegationTokenRenewer.java:942)
> at org.apache.hadoop.yarn.server.resourcemanager.security.DelegationTokenRenewer$DelegationTokenRenewerRunnable.run(DelegationTokenRenewer.java:918)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> 2019-09-25 12:51:23,446 DEBUG [main] util.MBeans (MBeans.java:unregister(138)) - Unregistering Hadoop:service=ResourceManager,name=CapacitySchedulerMetrics
> Exception in thread "pool-19-thread-2" java.lang.NullPointerException
> at org.apache.hadoop.yarn.server.resourcemanager.security.DelegationTokenRenewer$DelegationTokenRenewerRunnable.handleDTRenewerAppSubmitEvent(DelegationTokenRenewer.java:951)
> at org.apache.hadoop.yarn.server.resourcemanager.security.DelegationTokenRenewer$DelegationTokenRenewerRunnable.run(DelegationTokenRenewer.java:918)
> 2019-09-25 12:51:23,447 DEBUG [main] util.MBeans (MBeans.java:unregister(138)) - Unregistering Hadoop:service=ResourceManager,name=MetricsSystem,sub=Stats
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> 2019-09-25 12:51:23,447 INFO [main] impl.MetricsSystemImpl (MetricsSystemImpl.java:stop(216)) - ResourceManager metrics system stopped.
> {code}
> the RMContext dispatcher is not set for the RMMock which results in NPE accessing the event handler of the dispatcher inside {{DelegationTokenRenewer}}.
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